Respuesta :

Answer:

x = [tex]\frac{4}{5}[/tex], y = [tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Express as 2 equations, that is

x + y = 1 → (1)

- x + 9y = 1 → (2)

Add the 2 equations term by term to eliminate x, that is

10y = 2 ( divide both sides by 10 )

y = [tex]\frac{2}{10}[/tex] = [tex]\frac{1}{5}[/tex]

Substitute this value into (1) and solve for x

x + [tex]\frac{1}{5}[/tex] = 1 ( subtract [tex]\frac{1}{5}[/tex] from both sides )

y = [tex]\frac{5}{5}[/tex] - [tex]\frac{1}{5}[/tex] = [tex]\frac{4}{5}[/tex]